l Verizon LTE 7:08 PM a bbhosted.cuny.edu 1. 2. Name the scentists who discovere
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l Verizon LTE 7:08 PM a bbhosted.cuny.edu 1. 2. Name the scentists who discovered Q Micro cope. a Celli] Nucleus, and iv)Oromosomes in 2-3 sentences descnibe the significance of Mende's work that laid the foundation for major areas of biology such as genetics and molecular biology 3. Describe in 2-3 sentences ans to how did the work of Thomas Morgam on flies supported Mendels work 4. In 2-3 senbences describe the contribution of following scientists towards dscerning the Griffich Avery, McLeod and McCarty ) Hershey and Chase Linus Pauling Maurice Wilkins and Rosalind Franidin v) Mesesom and Stahl . How did the reseatch work of Rosalind Franiklin helped Watson and Crick to propose their model of DNA structure? What technique did she used? 6. What is Changafrs rule? What wil be the percentage of Guanine d'Adefine is 14% in the total genome of a newly discovered organism? 7, what wil be the percentage of Guanne Adenine s 28%n, thhe total 9. What is the difference between a deoxy ribose sugar and a rbose sugar? Draw their structures respectively wat is the role of a phosphate molecule in DNA? How does this property of DNA help in 11. What is a phosiphodiester bond and in involves which carbon atoms? 12 Which radloactive atom was used to prove that ONA replicates in semi conservative fashion 13. Which radoactive atoms were used to prove that DNA is the molecule responsible mediating the pathogenicity of bacteriophages 14. Define Major and Minor Grooves 15. How many number of baues constitube one turn in B, A and Z DNA? 16. What is the 7. How many bases are present in the one turn of the DNA hela? & How many minimum amount of turn could be expected in a DNA moleculeif distance between two consecutive bases in the DNA length til base pairs? 20. Draw chemical structures ofl nucleotides A and T as well as G and C showing the double (A-T and the triple (GChydrogen bonds moExplanation / Answer
Ans 1. Microscope :- It is not clear who invented the micrscope exactly . But it is often said .. that Zacharias Janssen invented microscope
ii)Cell - Robert Hooke discovered the cell
iii) Nucleus - Robert Brown discovered th nucleus
iv)Chromosome: - Karl Wilhelm Von Nageli discovered chromosome
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